from sqlalchemy import select, update, delete
from sqlalchemy.ext.asyncio import AsyncSession
from module_admin.entity.do.job_do import SysJob
from module_admin.entity.vo.job_vo import *
from utils.page_util import PageUtil


class JobDao:
    """
    定时任务管理模块数据库操作层
    """

    @classmethod
    async def get_job_detail_by_id(cls, db: AsyncSession, job_id: int):
        """
        根据定时任务id获取定时任务详细信息
        :param db: orm对象
        :param job_id: 定时任务id
        :return: 定时任务信息对象
        """
        job_info = (await db.execute(
            select(SysJob)
                .where(SysJob.job_id == job_id)
        )).scalars().first()

        return job_info

    @classmethod
    async def get_job_detail_by_info(cls, db: AsyncSession, job: JobModel):
        """
        根据定时任务参数获取定时任务信息
        :param db: orm对象
        :param job: 定时任务参数对象
        :return: 定时任务信息对象
        """
        job_info = (await db.execute(
            select(SysJob)
                .where(SysJob.job_name == job.job_name if job.job_name else True,
                       SysJob.job_group == job.job_group if job.job_group else True,
                       SysJob.invoke_target == job.invoke_target if job.invoke_target else True,
                       SysJob.cron_expression == job.cron_expression if job.cron_expression else True)
        )).scalars().first()

        return job_info

    @classmethod
    async def get_job_list(cls, db: AsyncSession, query_object: JobPageQueryModel, is_page: bool = False):
        """
        根据查询参数获取定时任务列表信息
        :param db: orm对象
        :param query_object: 查询参数对象
        :param is_page: 是否开启分页
        :return: 定时任务列表信息对象
        """
        query = select(SysJob) \
            .where(SysJob.job_name.like(f'%{query_object.job_name}%') if query_object.job_name else True,
                   SysJob.job_group == query_object.job_group if query_object.job_group else True,
                   SysJob.status == query_object.status if query_object.status else True) \
            .distinct()
        job_list = await PageUtil.paginate(db, query, query_object.page_num, query_object.page_size, is_page)

        return job_list

    @classmethod
    async def get_job_list_for_scheduler(cls, db: AsyncSession):
        """
        获取定时任务列表信息
        :param db: orm对象
        :return: 定时任务列表信息对象
        """
        job_list = (await db.execute(
            select(SysJob)
                .where(SysJob.status == 0)
                .distinct()
        )).scalars().all()

        return job_list

    @classmethod
    async def add_job_dao(cls, db: AsyncSession, job: JobModel):
        """
        新增定时任务数据库操作
        :param db: orm对象
        :param job: 定时任务对象
        :return:
        """
        db_job = SysJob(**job.model_dump())
        db.add(db_job)
        await db.flush()

        return db_job

    @classmethod
    async def edit_job_dao(cls, db: AsyncSession, job: dict):
        """
        编辑定时任务数据库操作
        :param db: orm对象
        :param job: 需要更新的定时任务字典
        :return:
        """
        await db.execute(
            update(SysJob),
            [job]
        )

    @classmethod
    async def delete_job_dao(cls, db: AsyncSession, job: JobModel):
        """
        删除定时任务数据库操作
        :param db: orm对象
        :param job: 定时任务对象
        :return:
        """
        await db.execute(
            delete(SysJob)
                .where(SysJob.job_id.in_([job.job_id]))
        )
